Steam pump



Patented July 5, |898. 1. B. RHODES.

STEAM PUMP.

(Application filed Jan. 23, 1897.)

2 Sheets-Sheet l.

(No Model.)

JAY E. RHODES,

OE CHICAGO, ILLINOIS,

'-PArENr @Erica ASSIGNOR To FREDERICK C.

AUSTIN, OE SAME PLACE.

sPEClEICArIoN farming-15m ornettefsrtnt No.6oe,844, dated July 5,1893.

Application tiled January'ZS, '1 8`97., Serial No. 620,3186.y (No niodelh A To all tali/omit concern.-

Be it knownthat-l, JAY B. RHODES, a eitizen of the Unite-d States, residing at Chicago, in the county of Cook and Stateof Illinoi's,; have invented a Certain new and -useful Irn' provement inSteam-Pumps, of which the following is a specification. My invention relates to steam-actuated hy draulic pumps, and particularly to a construction comprising a reciprocating steam-operated piston having a hollow rod or stem through which the exhaust from the steampiston Cylinder is conducted and having at one end of such rod or stem a head or plunger by which the pumping is eected.

Prominent objects of Vmy invention are to provide for the ready and effective adj ust-1 ment or tightening up of the packing-boxes for the piston-rod arranged between the piston-cylinder and pumping-chamber and to,`V permit such adjustment or tightening up to be made without the removal of bolts, caps, or other parts of the apparatus and` without in any way dismembering or taking apart the,

same; to provide a simple and desirable construction and arrangement for taking the ex haust from the hollow piston rod and dis-V charging the same either into the water-cham- In the accompanying drawings, Figure l is; a longitudinal section of a steam-pump einbodying my invention. Fig. 2 is a transverse section taken on line x in Fig. l.v Fig. 3 is a longitudinal section of the cylinder, piston, and valve on anY enlarged scale. I longitudinal section of the piston, taken on a plane at right angles to the one of Fig.` 3, showing the valvein elevation. Fig. 5 is a transverse-.section taken on line y y in Fig. 4.

Thelbase or bed A of the apparatus is conveniently provided with a couple of oppositely-arranged upright end portions l and 2, the former of which serves as a support for the piston-cylinder B. The upright end portion 2 of the bed affords a support for the part boxes.`

Fig. 4 is a of the apparatus which contains the pumping devices andis made hollow', so as to afford an'enlarged passage or chamber 2i, which prilmarily receives the' water through a' suitable port and which communicates withthe valved pumping-chamber C through suitable valved ports. The' piston Dl is arranged to work within the cylinder B and has its stem 3 extended to the pumping portion of the apparatus and therein provided with a head or plunger at. Said plungert is arranged to Work within a pump-barrel 5, which latter is open at both ends and arranged with its ends respectively in open communication with one and the other of the two portions 6 and 7 of the pumping-chamber.

rlhe piston-rod is made hollow,so as to provide an` exhaust-passage arranged to take the exhaust' from the piston-cylinder and vdischarge the same by way of a lateral port 8 in vthe hollow piston-rod into an annular chamberor passage 9, through which the said rod extends. 4This" exhaust chamber or passage -9 is'formed-by the space within a sleeve E, .having closed ends l0, through which the pisvton-rod is arranged to work. These ends l0 also severally constitute portions of packing- The sleeve E is provided with one or more lateral ports 11, which open into an exhaust-passage l2, arranged around the ported portion of said sleeve and extended `to the water chamber or passage 2, whereby the exhaust may be let into such water-chamber when so desired. The exhaust may, however, be Cut off from the water-chamber and discharged into the open air, and to such end .the passage is provided with a valve-cock F, having a diametrically-arranged port 18 for permitting the exhaust to pass to the waterohamber and also having a longitudinally- 'arranged Por 14 thloush which the exhaust will pass' to the openV air when the valve-cock .is properly adjusted, it beingobser'ved that the valve-cock is arranged to turn as a plug in a Cylindric shell 15, having lateral ports 16.

The portion l2:L of the exhaust-passage 12, which is provided with the valve-cock F, extends horizontally from one to the other of the upright end portions l and 2 of the base of the apparatus and is arranged below and away from the piston-rod, by which arrange- IOO ment the walls of such passage can unite or connect with said upright end portions l and 2 at points below and clear of the packingboxes for the piston-rod and also provide a convenient rigid connection between the two standards or upright trame portions l and 2. The sleeve E, which provides certain portions of a couple of packing-boxes and which also provides the exhaust chamber or passage 9, is tit-ted within a tubular casing G and adapted for end adj nstment within the same. This outer easing G has a liared end 17, which is connected with the frame portion at one end of the cylinder B by a threaded connection and which is su tlicient-ly expanded to provide about the sleeve E the aforesaid annular portion l2 of the exhaust-passage.

In the construction illustrated I have provided three packing-boxes for the piston-rod. Of these the packing-box Il is at one end of the piston-cylinder between the same and the exhaust-chamber D. The packing-box I is at one side of the pump-chamber, and the third packing-box K is arranged between the said two packing-boxes II and I and formed at one end of the exhaust chamber or passage D. The stationary part 1S of the packing-box II is formed with or secured to one end of the piston-cylinder, while the opposing adjustable part of said box is formed by an end lO ot the sleeve E, which said end also provides a bearing for the piston-rod and further closes one end of the exhaust-chamber 9. The opposite end of the sleeve E, likewise indicated by the numeral l0, provides 011e part ot the packing-box K, the opposing part of such box being provided by the end 19 of alongsleevelike nut KQ having one of its ends iitted within one end of the sleeve or casing G. This nut K/ has its threaded bore made of greater diameter than the diameter of the piston-stein, so as to receive the threaded end portion of an externally-threaded sleeve L, which is arranged upon the piston-stem and adapted at its opposite end 2O to provide the movable part of the packing-box I, the stationary part 2l of such box being formed with or secured to the side of the shell or casing 22 of the pump.

By the foregoing described arrangement the packing-boxes I and K can be readily tightened up by simply turning the nut K", and obviously such adjustment on the part ot said nut will also tend to adjust the sleeve E within its casing G in a direct-ion to tighten up the packing-box Il. Hence a rotary adjustment on the part of the nut K will serve to simultaneously tighten up all three of the packing-boxes. It will also be seen that a like adjustment can be attained by turning the sleeve I1. This arrangement also permits access to be easilyhad to the packing-boxes, it being observed that the casing G, sleeve E, nut K, and threaded sleeve L are all detachable and arranged so that they can be easily detached. It will be further seen that in case there were no intermediate exhaust-chamber E the sleeve-like nut K could be employed as a part of the steam-cylinder packing-box Il in the manner in which it is shown as a part of the exhaust-chamber packing-box K, it being observed that in either case the piston-rod is provided with a couple of packingboxes arranged intermediate ofthe steam and pumping cylinders.

The stem of the piston is desirably screwed into one end of the piston-head or piston proper, whereby it can be conveniently made and applied. The piston-head or pistom as it may be termed, comprises a couple of end plates 23 and 25a hollow body portion 25 confined and clamped between said end plates, and a central cylindrie portion 2G, which is rigid with and preferably cast in one piece with the end plate 2i. This inner or central portion 2G of the piston is of greater diameter than the diameter of the stem, but of less diameter than the diameter of the diametric area of the bore or cylindric chamber 3i within the said hollow body portion 25 of the piston, so as to leave within such chamber a suitable annular working space for a reciprocating eylindric valve M, which is arranged to slide between the inner and outer concentric portions 25 and 2G of the piston. This valve is formed with a stra-ight bore, and the central cylindric portions 2G of the piston is provided at its middle with an annular re cess 27,which, in effect, forms the valve-chamber, it being seen that by such arrangement the said valve-chamber is formed in the piston and not in the valve, also that the central portion 2G of the piston is of greater diameter than the stem 3, so as to permit it to be provided both with a central duet 2S, arranged coincident with and extending to the bore of the stem, and with annular peripherally-arranged grooves for packing-rings 29. One end of the central portion 2G of the piston is united with the end plate -l, as aforesaid, while its opposite end is provided with a stem 30, arranged to extend through an opening in the end plate 23 and having its terminal portion 3l, which extends beyond the end plate 23, suitably threaded, so as to receive a tightening-nut 32. It will be seen, therefore, that the piston, regardless of any arrangement of circuinferentially-formed recesses or passages, is externally of ordinary form and that it contains a long annular chamber Si, within which the valve is arranged to work, also that the middle annular space or chamber 27 is formed in a portion ot' the piston and not in the valve, which latter has a straight cylindric inner face arranged to slide along the cylindric face of the central portion 2G of the piston. The construction of piston and valve thus far described comprises a simple and highly-desirable arrangement and is exceedingly advantageous with regard to economyin and accuracy of manufacture and with regard to adjustment and replacement of parts during service.

The valve and piston can be operated by IOO IIO

IZO

to the left.

steam admitted and exhausted through any known or suitable arrangement of ports, and the pump valve or valves and other details of the pumping portion of the apparatus can also be constructed and arrangedin any known or suitable way.

With reference to the arrangement of ports and pump details herein selected by way of illustrating a working apparatus the operation of the piston and of the pumping portion Will be readily understood from the following: Live steam is let in through-a side port B' in the cylinder,and when the piston D is at the left, as indicated in 3, the steampasses into an annular recess 33, formed at one end -of the outer body portion 25 of the piston, and

thence into the centralann ular space or chamber 34 of the piston byway of ports 35, Fig. 4, which said ports connect said recess 33 and chamber 34. The valve M therefore moves During this movement of the valve M to the left one end of an exhaustport'36 in the piston is uncovered, thereby allowing ysteam to pass from the chamber 34 in the valveM by way of a side opening 36h.` From the -latter it passes into a longitudinal port or passage 39, formed in the piston and extending between said chamber 34 and. the left-hand end of the piston, and through said port into the interior of the cylinder, where it operates to drive the piston' to the right. When the piston has moved in this direction sufficiently. to put the wideA annular recess 40, formed in itsbody part 25, into communication with the steam port Bf, live steam passes intoAv the chamber 34 through the righthand inner end of a port or passage 4i in the bodypart 25 of the piston, Fig. 4, connecting.

said recess 40 and chamber 34, thence into the Valve-recess 37, and out through the port 39, as before. Upon the arrival of the piston at the ri ght-hand end of the cylinder an annular recess 33a, corresponding to recess 33, is put into communication with'the steam-port B', whereupon live steam enters the chamber 34 through ports 35, corresponding to ports 35, and drives the valve M to the right. This movement of the valve exposes one end of an exhaust-port 36, corresponding to port 36, whereupon steam passes from the chamber 34 into port 36, thence by way of a side opening 36C into an annular recess 37, -formed vin the periphery of the valve M and corresponding to the recess 37, and thence into a `port 30, corresponding to port 39, and through said port 39 into the cylinder at the right-hand side of the piston. The resulting movement `of the piston to the left places the annular come into communication with port B, theA previously-described operation is repeated. During'the movement of the valve M tothe right steam is exhausted from the right-hand end of the chamber 34 into port 36 and out through the end 36d of said port into an annular recess 42, formed in the periphery of valve AM intermediate of the recesses 37 and 37, it being observed that the side opening 36b ofl said port 36 is closed at such time by the valve M. From the recess 42 the steam passes into the interior exhaust-duct 2S of the central piston portion 26 through ports 43 and 44, of which the former connect the valverecess 42 with the chamber formed by the spindle-recess 27, and the latter connect said recess 27 with the interior duct 28. During the movement of the valve M to the left exhaust-steam passes in a similar manner from the left-hand end ofthe chamber 34 into the duct 2S by way of port 36, opening 36e of said port, annular recess .42, and ports 43 and 44. The exhaust-steam from the cylinder passes likewise into recess 42 and thence into duct 28. This exhaust occurs during the movement of the pistonto the right through port 39a and during the movement of the same to the left through port 39. The movement of the piston D effects a corresponding movement of the pumping-plunger 4, as aforesaid, and this movement of the pumping-plunger results in the pumping operation by means of suitable check-valves 45, 46, 47, and 43, which are arranged upon suitable seats provided at Vthe upper portion of and above the pumping-chamber C. The pumping operationk occurs as follows: l/Vhen the plunger 4 moves to the left, the valve 47 is lifted bythe suction caused bysuch movement and water passes fromthe Water-compartment 2 into the pumping-cylinder 5 by way'of fthe Vpassage 7. At the same time water is forced by the plunger 4 from the other end of said cylinder 5, whereupon the valve 46 lifts and the water passes into achamber 50, which is arranged between an air-bulb 51 and the pumping-cylinder 5 and is provided with a suitable outlet-socket 53, it being observed that in order to insure the proper working of the pump the passages 6 and 7 are separated by a suitable partition 52, which also serves to provide the inner seats for the check-valves. Upon the return stroke of the pump-plunger from left to right the check-valves 45 and 4S are lifted, the former allowing the water to iiow into the left-hand end of the cylinder 5 by way of the passage 6 and the latter allowing water forced out of the right-hand end of. said cylinder to pass into the chamber 50.

It is distinctly understood that while I have herein designated the apparatus as a steamactuatec hydraulic pump it may be operated by air or gas under pressure and maybe used for pumping any liquid, that anyfluid under pressure as a means for operating the piston is4 herein considered as an equivalent for steam, and that in the following claims the term steam, which is employed for the sake of brevity, includes other equivalent means, such as other fluids under pressure, it-being IIO IZO

also understood that the terms steam and steam-cylinder are conveniently employed in the following claims to readily distinguish both the motive fluid which operates the piston and the piston-cylinder in which a piston is operated by such motive fluid from the fluid in the pumping device and the pumpplunger and its cylinder, but that wherever the word steam occurs it is understood to include other motive fluid under pressure.

Vhat I claim isl. lnasteam-actuatedhydraulicpump, the combination with the oppositely arranged steam. and pumping cylinders, of a hollow pump -plunger operating piston-rod which serves as an exhaust-outlet for the steam exhausting from the steam-cylinder; an exhaust-chamber into which the piston-rod extends, and discharges the steam exhausting from the steam-cylinder; piston-rod packingboxes for the steam and pumping cylinders, and for the exhau st-ehamber,and means forsimultaneonsly adjusting the adjustable packing-glands with which the steam and pumping eylinder,and exhaust-chamberpacking-boxes are provided; substantially as set forth.

i2. ln asteam-aetuated hydraulic pump, the combination with the oppositely arranged Steam and pumping cylinders, of a hollow pnmp-plunger-operating piston-rod which serves as an exhaust-outlet for the steam exhausting from the steam-cylinder; an exhaust chamber inclosing the piston-rod between the steam and pumping cylinders, and receiving the exhaust from said piston-rod exlniust-port; a couple of rotary and longitudinally-adjustable piston-inelosing sleeves having their adjacent ends respectively internally and externally screw-threaded so as to t together the one within the other, so that the sleeves can be relatively adjusted simultaneously in opposite directions, and having their opposite ends formed so as to provide packing-glands for one and the other of a couple of piston-rod packing-boxes which are situated at the adjacent ends of the pumping-cylinder and the exhaust-chamber; and a ported longitudinally-movable sleeve arranged over the piston-rod Within the exhaust-- chamber and having its ends formed so as to provide packing-glands for one and the other of a couple of piston-rod packing-boxes which are arranged at the adjacent ends of the steamcylinder and the exhaust-chamber, substantially as set forth.

3. In a steam-actuated engine, the combination with the steam-cylinder and the piston working therein, of the piston-rod extending from the cylinder and serving as an exhaustoutlet for the steam exhausting therefrom; an exhaust-chamber into and through which the piston-rod extends, and into which it discharges the steam exhausting from the steamcylinder; a couple of piston-rod packingboxes arranged at the opposite sides of the exhaust-chamber, and provided with adjustable packing-glands; and means for simultaneously and eoineidently adjusting the adj ustable packing-glands of both of said packing-boxes, substantially as set forth.

4. In a steam-actuated engine, the combinationwith the steam-cylinder and the piston working therein, ofthe piston-rod extending from the cylinderl and serving as an exhaust-outlet for the steam exhausting therefrom; an exhaust-chamber into and through which the piston-rod extends, and into which it discharges the steam exhausting from the steam-cylinder; a ported longitudinally-adjustable sleeve inclosing the piston-rod within the exhaust-chamber; a couple of pistonrod packing-boxes for the exhaust-chamber, each of which has one of its glands provided by one of the ends of said longitudinallyadjustable piston-inclosing sleeve, and one of which has its other gland independently adjustable along the piston-rod so as to permit of its tightening the packing between itself and the end of the sleeve forming the other gland thereof and thereby simultaneously and coincidently adjusting said sleeve longitudinally so as to tighten the packing in the other packing-gland, substantially as set forth.

5. In a steam-actuated engine, the combination of a steam-cylinder having one of its ends provided with an ontwardly-extending shell or easing which provides an exhauststeam chamber; a hollow piston-rod extending from the steam-cylinder into the exhaustchamber and providing an outlet for the exhaust-steam, and having an exhaust-port which com m unieates wi th said exhaust-chamber; a ported longitudinally-adjustable piston-rod-inclosing sleeve arranged within the exhaust-chamber and constructed so as to be removable therefrom by way of the open outer end of the shell or casing without detaching the shell or easing from the cylinder; a piston-rod packing-box intermediate of and common to, the piston-cylinder and the exhaust-chamber, and having its adjustable packing-gland provided by one of the ends of said sleeve; and means for adjusting said sleeve so as to adjust the packing-gland provided thereby, independently of the shell or casing, said means being fitted within the open outer end of the shell or casing, and constructed so as to be exteriorly manipulated for adjustment, substantially as set forth.

G. In a steam-actuated engine, the combination with the steam-cylinder and the piston working therein, of the piston-rod extending from the steam-cylinder and serving as an exhaust-outlet for the steam exhausting therefrom; an exhaust-chamber into and through which the piston-rod extends, and into which it discharges the steam exhausting from the steain-cylinder; piston-rod packing-boxes for the steam-cylinder and for the opposite sides of the exhaust-chamber, said boxes being provided with adjustable packing-glands; and means for simultaneously and coincidently adjusting the adjustable packing-glands of IOC) IIO

substantially as combination with the oppositely-arranged steam and pumping cylinders, and with the steam-actuated piston and pump-plunger therefor, of the piston-rod extending between the steam and pumping cylinders and s erving as an exhaust-outlet for the steam exhausting from the steam-cylinder; an exhaust-chamber into and through which the piston-rod extends, and into which it discharges the steam exhausting from the steamcylinder; piston-rod packing-boxes for the pumping-cylinder, and for the opposite sides of the exhaust-chamber, said boxes being provided with 'adjustable packing-glands; and means for simultaneously and coincidently adjusting the adjustable packing-glands of all of said packing-boxes; substantially as set forth.

S. In a steam-actuated engine, a steam-cylinder having one of its ends provided with a tubular packing-box H having its inner end formed so as to provide a packing-gland, and provided also with an outwardly-extending shell or casing which provides an exhauststeam chamber; a hollow piston-rod extending from the steam-cylinder into the exhaustchamber and out of the latter by Way of the open outer end of the shell or casing, and providing an outlet for the steam exhausting from the steam-chamber, and having an exhaust-port which communicates with the exhaust-chamber; a ported longitudinally-adjustable piston inclosing sleeve arranged within the shell or casing and constructed so as to be removable therefrom by way of the open outer, end thereof, and also constructed so that its inner end fits within the tubular packing-box H andprovides an adjustable gland therefor, and also so that its outer end iits within the outer end of the shell or casing and provides an adjustable packing-gland therefor; and a second and independently longitudinally adjustable sleeve inclosing the piston-rod and having its inner end'tted within the open outer end of the shell or casing and constructed so as to provide the other packing-gland therefor, substantially as set forth.

9. The combination of a cylinder having a suitable supply-port; a piston working in said cylinder and comprising an outer hollow cylindric portion and an inner concentricallyarranged hollow central portion havinga peripheral exhaust-recess which communicates with its interior, and also having its external diameter less than that of the internal diameter of the bore of the outer cylindric portion so as to form an annular space between the two; and a steam-actuated valve working in said annular space and having a straight bore adapted to fit over the central portion of the piston; saidiouter portion of the piston and said steam-actuated valve being provided with coperating ports adapted to receive steam from the cylinder supply-port and to exhaust the same into the peripheral recess of the central piston portion, and to cause a continuous reciprocation of the piston; and a hollow piston-rod which receives the exhaust from the interior of the central portion of the piston; substantially kas set forth.

10. The combination of a steam-cylinder having a suitable'supply-port; a piston working in said cylinder and comprising a pair of oppositely-arranged cylindric heads, an intermediate hollow body part 25 clamped between said heads, and a concentrically-arranged hollow central portion 2G having a peripheral exhaust-recess 27 which communicates with its interior, and also having an external diameter less than that of the bore of the body part 25 so as to form an annular space between the two; a s'teamfactuated valve working insaid annular space and having a straight bore adapting it to t over the central portion 26; said body part 25 and steam-actuated valve being provided with cooperating ports adapted to receive steam from the cylinder supply-port and to exhaust the same into the peripheral exhaust-recess 27 of the central piston portion 2G, and to effect a continuous reciprocation of the piston; and a hollow exhaust-receiving piston-rod having an external diameter less than that of the central piston portion 26, and fitting in a socket formed in the same; substantially as set forth.

JAY B. RHODES. Witnesses:

MARGARET l/LWAGNER, ARTHUR F. DURAND. 

